Image prompt

MBTA delays… now on Mars

Single-panel cartoon: a Martian subway platform with red dust and a dome overhead. An electronic sign reads “NEXT TRAIN: DELAYED (SIGNAL ISSUES)” and below it “Mars is not exempt.” Commuters in bulky space suits stand around looking resigned, one holding a transit card. A map behind them shows a parody transit diagram with stops like “Olympus Mons” and “New Fenway.” Keep it clearly humorous, not a real MBTA logo reproduction.